Chione Ltd - 11 Feb 2025 SCHEDULE 13D/A Report for Sera Prognostics, Inc. Class A Common Stock (SERA)

Filing Manager
Chione Ltd
Reporting Manager
Chione Ltd.
Security
Sera Prognostics, Inc. Class A Common Stock
Symbol
SERA
Shares outstanding
34,280,934 shares
Disclosed Ownership
2,605,351 shares
Ownership
7.6%
Form type
SCHEDULE 13D/A
Filing time
14 Feb 2025, 17:00:50 UTC
Date of event
11 Feb 2025
SEC
View on sec.gov

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Quoteable Key Fact

"Chione Ltd disclosed 7.6% ownership in Sera Prognostics, Inc. Class A Common Stock (SERA) on 11 Feb 2025."

Quick Takeaways

  • Chione Ltd filed SCHEDULE 13D/A for Sera Prognostics, Inc. Class A Common Stock (SERA).
  • Disclosed ownership: 7.6%.
  • Date of event: 11 Feb 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 14 Feb 2025, 17:00.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Official SEC Source

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (5)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Chione Ltd. 7.6% 2,605,351 0 2,605,351 /s/ Shalom Leaf, as attorney-in-fact Shalom Leaf, as attorney-in-fact 0001590232
Marcin Czernik 7.6% 2,605,351 0 2,605,351 /s/ Shalom Leaf, as attorney-in-fact Shalom Leaf, as attorney-in-fact
Andreas Hadjimichael 7.6% 2,605,351 0 2,605,351 /s/ Shalom Leaf, as attorney-in-fact Shalom Leaf, as attorney-in-fact
Anastasis Nikolaou 7.6% 2,605,351 0 2,605,351 /s/ Shalom Leaf, as attorney-in-fact Shalom Leaf, as attorney-in-fact
Wiaczeslaw Smolokowski 7.6% 2,605,351 0 2,605,351 /s/ Shalom Leaf, as attorney-in-fact Shalom Leaf, as attorney-in-fact

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